Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
An increase in the average high-temperature marks May, moving from April's mild 56.1°F (13.4°C) to an agreeable 68°F (20°C). May nights in Winthrop, Iowa, are marked by an average low-temperature of 51.3°F (10.7°C).Humidity
In Winthrop, the average relative humidity in May is 78%.Rainfall
The wettest months are May and June, with an average 4.37" (111mm) of rainfall.Snowfall
January through May, October through December are months with snowfall in Winthrop. May is the last month it regularly snows in Winthrop. During 0.1 snowfall days, in May, Winthrop aggregates 0.12" (3mm) of snow. Throughout the year, in Winthrop, there are 43.9 snowfall days, and 18.43" (468mm) of snow is accumulated.Daylight
The average length of the day in May in Winthrop is 14h and 38min.On the first day of the month, sunrise is at 6:00 am and sunset at 8:07 pm. On the last day of May, in Winthrop, sunrise is at 5:32 am and sunset at 8:37 pm CDT.
Sunshine
In Winthrop, the average sunshine in May is 8.4h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for Winthrop in May?
What is the average humidity in May in Winthrop?
What is the rainiest month in Winthrop?
How much does it rain in Winthrop in May?
What is the last month it snows in Winthrop?
How many hours of daylight does Winthrop have in May?
When are sunrise and sunset in May in Winthrop?
How long on average sun shines in May in Winthrop?
When is the highest UV index in Winthrop?
How high is the UV index in May in Winthrop?
Average temperature in May
Winthrop, IA
- Average high temperature in May: 68°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in May: 51.3°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in May
Winthrop, IA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in May
Winthrop, IA
- Average wind speed in May: 9.4mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in May
Winthrop, IA
- Average humidity in May: 78%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (73%).
Average rainfall in May
Winthrop, IA
- Average rainfall in May: 4.37"
The wettest months (with the highest rainfall) are May and June (4.37").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in May
Winthrop, IA
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in May
Winthrop, IA
- Average snowfall in May: 0.12"
The month with the highest snowfall is January (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Winthrop, IA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Winthrop, IA
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Winthrop, IA
- Average sunshine days in May: 10.8 days
The months with the most sunshine days are January, October and November (17.5 days).
The month with the least sunshine days is June (8.2 days).
Average UV index in May
Winthrop, IA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Winthrop, IA
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in May
Winthrop, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Winthrop, Iowa, USA
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